5415c856ea
(by Valdimir) function old new delta config_open2 - 41 +41 config_read 507 542 +35 find_pair 169 187 +18 fopen_for_write - 14 +14 fopen_for_read - 14 +14 find_main 406 418 +12 xfopen_for_write - 10 +10 xfopen_for_read - 10 +10 popstring 134 140 +6 parse_inittab 396 401 +5 next_token 923 928 +5 pack_gzip 1659 1661 +2 bb__parsespent 117 119 +2 fallbackSort 1719 1717 -2 evalvar 1376 1374 -2 qrealloc 36 33 -3 ... ... ... ... singlemount 4579 4569 -10 process_stdin 443 433 -10 patch_main 1111 1101 -10 ifupdown_main 2175 2165 -10 file_action_grep 90 80 -10 uuidcache_init 649 637 -12 hush_main 797 785 -12 read_config 230 217 -13 dpkg_main 3835 3820 -15 read_line_input 3134 3110 -24 sysctl_main 232 203 -29 config_open 40 10 -30 WARN_BAD_LINE 44 - -44 login_main 1714 1575 -139 ------------------------------------------------------------------------------ (add/remove: 5/1 grow/shrink: 8/74 up/down: 174/-737) Total: -563 bytes
94 lines
2.1 KiB
C
94 lines
2.1 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Mini hostname implementation for busybox
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*
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* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
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*
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* adjusted by Erik Andersen <andersen@codepoet.org> to remove
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* use of long options and GNU getopt. Improved the usage info.
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*
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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#include "libbb.h"
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static void do_sethostname(char *s, int isfile)
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{
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if (!s)
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return;
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if (isfile) {
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parser_t *parser = config_open2(s, xfopen_for_read);
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while (config_read(parser, &s, 1, 1, "# \t", 0)) {
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do_sethostname(s, 0);
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}
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if (ENABLE_FEATURE_CLEAN_UP)
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config_close(parser);
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} else if (sethostname(s, strlen(s)) < 0) {
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if (errno == EPERM)
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bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
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bb_perror_msg_and_die("sethostname");
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}
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}
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int hostname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int hostname_main(int argc, char **argv)
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{
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enum {
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OPT_d = 0x1,
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OPT_f = 0x2,
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OPT_i = 0x4,
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OPT_s = 0x8,
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OPT_F = 0x10,
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OPT_dfis = 0xf,
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};
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char *buf;
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char *hostname_str;
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if (argc < 1)
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bb_show_usage();
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getopt32(argv, "dfisF:", &hostname_str);
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argv += optind;
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buf = safe_gethostname();
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/* Output in desired format */
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if (option_mask32 & OPT_dfis) {
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struct hostent *hp;
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char *p;
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hp = xgethostbyname(buf);
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p = strchr(hp->h_name, '.');
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if (option_mask32 & OPT_f) {
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puts(hp->h_name);
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} else if (option_mask32 & OPT_s) {
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if (p)
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*p = '\0';
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puts(hp->h_name);
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} else if (option_mask32 & OPT_d) {
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if (p)
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puts(p + 1);
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} else if (option_mask32 & OPT_i) {
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while (hp->h_addr_list[0]) {
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printf("%s ", inet_ntoa(*(struct in_addr *) (*hp->h_addr_list++)));
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}
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bb_putchar('\n');
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}
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}
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/* Set the hostname */
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else if (option_mask32 & OPT_F) {
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do_sethostname(hostname_str, 1);
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} else if (argv[0]) {
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do_sethostname(argv[0], 0);
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}
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/* Or if all else fails,
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* just print the current hostname */
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else {
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puts(buf);
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}
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if (ENABLE_FEATURE_CLEAN_UP)
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free(buf);
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return EXIT_SUCCESS;
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}
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